This bug in the Noesis multiline text editor (TextBox).
In our multiline text fields, we often end our lines with the Windows standard \r\n. In the Visual Studio text viewer in the debugger, this just shows up as a newline, e.g. after "settings:" below, there is a blank line (I'll use this text as an example in this bug report):

(see TextView.png)

But if you view the actual char array data, it looks like this: "...settings:\r\n\r\nTrack...":

(see TextArrayPreEdit.png)

This seems to cause buggy behavior when you position the input cursor in a TextBox on a blank line:

(See TextBoxEditing1.png)

When you type something, it appears on the previous line (here I typed "g"):

(See TextBoxEditing2.png)

...and now looking at the character array data, the "g" was inserted between the \r and the \n:

(see TextArrayPostEdit.png)

I think the error is a kind of off-by-one error on the cursor insert position in the case where newlines are actually represented by 2 characters. The "g" should have been inserted after the \r\n and before the next \r\n.